UI Architecture
Designs maintainable frontend systems with reusable components, state boundaries, and scalable routing patterns.
Current
Sr. Fullstack Engineer + Tech Lead — React + Node.js (NestJS)
Sr. Fullstack Engineer & Tech Lead | React · NestJS · Node.js · TypeScript · Microservices
Senior Fullstack Engineer and Tech Lead with 12+ years of experience building modern React product UIs and NestJS microservices backends. Combines deep TypeScript expertise across the full stack — from React component libraries, state management (Redux Toolkit, Zustand), and Next.js SSR to NestJS API design, event-driven backend services, and cloud-native delivery. Leads product engineering teams through full-stack delivery with a focus on shipping fast, maintaining quality, and scaling frontend and backend systems together. Ajay leads TypeScript full-stack delivery for product teams, combining React frontend depth with NestJS backend engineering. He drives architecture decisions on both sides of the stack — React component boundaries, state management patterns, NestJS module design, microservices contracts — while keeping teams aligned, codebases maintainable, and products shipping. A TypeScript-first Fullstack Tech Lead profile combining React product engineering with NestJS microservices backend, designed for senior roles in modern JavaScript/TypeScript product teams.
Best fit
Sr. Fullstack Engineer, Tech Lead — React, Node.js (NestJS), TypeScript product teams
React
NestJS
Node.js
TypeScript
Tech Lead
Fullstack Engineer
Next.js
Microservices
Redux Toolkit
REST APIs
React Architecture (Hooks, Context, Redux Toolkit, Zustand)
Next.js SSR, SSG & App Router
NestJS Microservices & Module Design
TypeScript Full-Stack Engineering
REST API, GraphQL & WebSocket Backends
Event-Driven Messaging (Kafka, RabbitMQ)
Core competencies
How this profile should be understood
Scalable Backend Systems
Builds modular services, background workflows, and integration layers that stay reliable as product and traffic complexity grow.
System Design & Architecture
Translates product and platform goals into service boundaries, deployment patterns, and maintainable technical direction.
API Design & Integrations
Defines clean contracts for frontend, backend, and third-party integrations with an emphasis on consistency and operational clarity.
Cloud & DevOps Delivery
Improves release reliability through containerized delivery, deployment automation, and production-ready cloud operating patterns.
Performance & Event Processing
Uses caching and asynchronous messaging to improve throughput, reduce latency, and isolate failures in production workflows.
Technology groups
ATS-friendly skill grouping
Frontend
React, Next.js, TypeScript, JavaScript, Redux Toolkit, Zustand
Backend
Node.js, NestJS, Express.js, Java, Go, GraphQL
Architecture
Microservices
APIs
REST APIs, GraphQL, WebSockets, Kafka, RabbitMQ, Redis
DevOps
AWS, Docker, Kubernetes, CI/CD, GitHub Actions
AI / Automation
Not emphasized for this profile.
Selected emphasis
Projects, keywords, and positioning
Strongest projects
Enterprise SaaS Platform (Multi-Tenant), Agentic Business Operating System (BizXOS / BizlyUp), AliveCV / GenAIxperts, Logistics Platform, Backendless REST & WebSocket Platform, ScanQuizzy
Key expertise
React Architecture (Hooks, Context, Redux Toolkit, Zustand), Next.js SSR, SSG & App Router, NestJS Microservices & Module Design, TypeScript Full-Stack Engineering, REST API, GraphQL & WebSocket Backends, Event-Driven Messaging (Kafka, RabbitMQ), Design Systems & Component Libraries, Monorepo Architecture (Nx, Turborepo), Database Design (PostgreSQL, MongoDB, Redis), Tech Lead & Engineering Team Mentoring
Profile positioning
A TypeScript-first Fullstack Tech Lead profile combining React product engineering with NestJS microservices backend, designed for senior roles in modern JavaScript/TypeScript product teams.